While studying he was also employed for a season with the Residentie orchestra in The Hague with Hans Vonk. Peter has been employed since 1985 as bass trombonist by the Netherlands Symphony Orchestra in Enschede. On leaving college the national classical radio station broadcast a program featuring Peter.

Peter freelances with many Dutch symphony orchestras and new music ensembles. In doing so he has met many famous conductors including Andre Previn, Neeme Jaervi, Riccardo Chailly, Carlo Maria Giulini, Valeri Gergiev and Mariss Jansons. Working with these orchestras has given him the chance to travel and perform all over the world and resulted in the recording